Oil-valve drain



vTo all 'wko/m, it' may concer/n.'

Patented Mar. 3, 1925-.

JOSEPH L. BREDAH, OF ROOK ISLAND, ILLINOIS.

OIL-VALVE DRAIN Application filed May 5, 1922. Serial No. 558,742.

Be it known that I, JOSEPH L. BREDAR, a citizen of the United States,residing at Rock Island, in the county of Rock Island and State ofIllinois, have-invented a new and useful Oil-Valve Drain, of which thefollowing is a specification. Y

By way of explanation it may be stated that in accordance with thepresent practice, when the crank case of an internal combustion engineon an automobile is to be drained of oil, it is necessary to screw aplug out of the crank case. necessary for the operator to crawl underthe vehicle, the plug frequently drops into the oil bucket therebeneath,and, generally, the process of draining a crank case on an automobile isinconvenient.

The foregoing being understood, the present invention aims to provide asimple means whereby through the instrumentality of a rotary valve, thecrank case of an automobile may be drained.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the inventionappertains.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise" embodiment of the inventionshown can be m-ade without departing from the spirit of the invention.

In the accompanying drawngz# Figure 1 shows in elevation, a deviceconstructed in accordance with the invention, assembled with a portionof the crank case of -an automobile engine, the case appearing insection; Figure 2 is a section on the line 2-2 of Figurel 1, the crankcase being omitted.

The numeral 1 marks the crank case of an internal combustion engine onan automobile. In carryingV out the invention there is provided avalvecasing 2 having a neck 3 which is threaded into the vcrank case l.The neck 3 has a bore 4, the casing havin an outlet opening 5 alinedwith the bore. I valve 6, of tapered or other construction is mounted torotate in the casing 2 and has a finger piece 7 whereby the valve may beThis operation renders it' rotated.- A transverse port 8 is formed inthe valve 6 and is adapted to be brought into and out of registrationwith the bore 3 and the outlet 5. The valve 6 is supplied with a stem 9whereon is mounted a washer 10,

abutting against the valve casing 2, a nut 11 Y being threaded on thestem 9 and cooperatf plug must be removed from a crank case to effect adrainin of the oil in the crank case.

Briefiy consi ered, the device forming the subject matter of thisapplication comprises a crank case 1, a casing 2 having a neck 3threaded into the lower portion of the crank case, and a valve 6 mountedto rotate in the casing and controlling the flow of oil from the crankcase through the casing, the casingl being of vapproximately Y cubicalform to promote its strength with a minimum expenditure of material, todefine a flat end surface 12 adapted to abut against the crank case, todefine flat side surfaces 14, to any of which a wrench may be appliedwhen the valve is removed, and to define a. flat bottom surface 16,devoid of projections with which Van obstacle may engage;

What is claimed is In a device of the class described, a crank oase, acasing having a neck threaded into the lower portion of the crank case,and a valve mounted to rotate in the casing and controlling the flow ofoily from the crank case through the casing, the casing being ofapproximately cubical form to promote its strength with a minimumexpenditure of material, to define a fiat end surface adapted to abutagainst theicrank case, to define fiat side surfaces, to any of which awrench may be applied when the valve is removed, and to define a fiatand unincumbered bottom surface.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

JOSEPH L. BREDAR.

Witnesses:

L. C. RAMSDALE, JOHN P. Snx'roN.

